Faradaic Efficiency
Calculate the faradaic efficiency (current efficiency), η = (m_actual ÷ m_theoretical) × 100%, comparing the mass of product actually deposited or consumed with the theoretical mass predicted by Faraday's law for the charge that passed. The result, in %, measures what fraction of the current was actually used in the desired reaction; the rest is lost to side reactions (such as hydrogen or oxygen evolution) or short circuits. It is a key indicator in electrodeposition, industrial electrolysis, electroplating and batteries. Enter the actual mass obtained and the theoretical mass.
Result
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Eficiência faradaica
A lei de Faraday prevê exatamente quanta massa deveria ser depositada, dissolvida ou produzida numa reação eletroquímica para uma certa quantidade de carga elétrica que passa. Na prática, porém, nem toda a corrente vai para a reação que queremos — parte se desvia para reações paralelas. A eficiência faradaica (ou eficiência de corrente) mede esse aproveitamento: η = (m_real ÷ m_teórica) × 100%, a razão entre a massa realmente obtida e a massa teórica calculada por Faraday para a mesma carga. Uma eficiência de 90% significa que 10% da corrente foi 'desperdiçada'. Os ladrões de corrente mais comuns são o desprendimento de hidrogênio no cátodo e de oxigênio no ânodo (eletrólise indesejada da água), reações de espécies secundárias e correntes de fuga. O conceito é central em várias indústrias: na galvanoplastia e eletrodeposição (quanto do banho vira revestimento), na eletrólise industrial (produção de alumínio, cloro-soda — onde cada ponto percentual significa enormes custos de energia), e em baterias (a eficiência coulômbica, que mede quanta carga injetada é recuperada na descarga, é a mesma ideia). Informe a massa real obtida e a massa teórica.
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The results provided by this tool are for general informational and educational purposes only and do not constitute professional, financial, medical, legal, tax or accounting advice. Always confirm important decisions with a qualified professional and official sources.